|  | 2.3 | Switching and VLANs
| 2.3.10 | How to set up VLANs
An Ethernet switch physically segments a LAN into individual collision domains. However, each segment is still part of one broadcast domain. The total number of segments on a switch equals one broadcast domain. This means that all nodes on all segments can see a broadcast from a node on one segment. A VLAN is a logical grouping of network devices or users that are not restricted to a physical switch segment. The devices or users in a VLAN can be grouped by function, department, application, and so on, regardless of their physical segment location. A VLAN creates a single broadcast domain that is not restricted to a physical segment and is treated like a subnet. VLAN setup is done in the switch by software. VLANs are now standardized according to IEEE 802.1Q, but implementations vary between vendors.
| Lab Activity
| This lab will help develop a basic understanding of Ethernet switch management and will help prepare for more advanced switching lessons such as VLANs. You will work with the Switch Management Console User Interface Menus to configure some basic switch options. Switch management can be done through a menu-driven interface such as the Management Console or through a command line interface (CLI) as with most routers.
| Lab Activity
| In this lab you will work with the Management Console interface menus to configure a switch to operate in Fragment-Free switching mode. You will also configure a port to enable Full Duplex and Port Fast operation. Most switches can be configured with these options.